NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
29 reportsClear category filter100,000 miles · Jul 30, 2026
Electrical SystemEngineFire
The contact owned a 2014 BMW 328I. The contact stated while the vehicle was parked, the vehicle stalled after overheating the previous day. The contact stated that an unknown warning light was illuminated. The vehicle was towed to a dealer, where it was diagnosed that the valvetronic system needed to be replaced; while the vehic…
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The contact owned a 2014 BMW 328I. The contact stated while the vehicle was parked, the vehicle stalled after overheating the previous day. The contact stated that an unknown warning light was illuminated. The vehicle was towed to a dealer, where it was diagnosed that the valvetronic system needed to be replaced; while the vehicle remained at the dealer awaiting repairs, the contact was notified that the vehicle had sustained thermal damage over the weekend, caught fire, and burned completely, leaving only the frame. The vehicle was unoccupied during the fire. A police and fire department report was filed. The manufacturer was notified of the failure. The contact was later notified that the VIN was included in NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM). The failure mileage approximately 100,000.
NHTSA ODI #11753873
Mileage unknown · May 31, 2026
Engine
I was driving in the highway at 65MPH, I heard an audible tone. I looked at speedometer and had a message to to press unlock button to switch gears. Then my engine light came on and was steady. My car went into neutral while driving at 65 mph. Thank god I was able to pull to side. I tried to put back into drive or reverse and …
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I was driving in the highway at 65MPH, I heard an audible tone. I looked at speedometer and had a message to to press unlock button to switch gears. Then my engine light came on and was steady. My car went into neutral while driving at 65 mph. Thank god I was able to pull to side. I tried to put back into drive or reverse and no response. It did allow me place in park. It would not start. I had it towed to a BMW service center and they said my engine failed internally.. while driving.
NHTSA ODI #11741157
Mileage unknown · Mar 21, 2026
Engine
So, the N20 2.0L motors are known to have prematurely failing plastic chain guides and a weak hydraulic tensioner, leading to whine, rattles, and potential engine failure. BMW improved the issue in the 2015 or newer models which have more robust timing chain guides and Tensioners. The fix involves replacing the entire timing c…
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So, the N20 2.0L motors are known to have prematurely failing plastic chain guides and a weak hydraulic tensioner, leading to whine, rattles, and potential engine failure. BMW improved the issue in the 2015 or newer models which have more robust timing chain guides and Tensioners. The fix involves replacing the entire timing chain assembly (guides, chain, tensioner) with updated, more durable parts and cleaning the oil pump/pan of debris. Which the 2015 and newer models have this fix. 2014 and older models with the N20 suffer from failing parts due to a design flaw. Since the The BMW N20 engine (2012–early 2015 328i) does suffer from premature timing chain guide failure, leading to oil pump failure and catastrophic engine failure. There should be a recall with these older models. And there should be a fix for them. BMW design this motor and the only remedy the issue in the newer models 2015 or newer. So anyone that doesn't have a 2015. Their N20 is basically a ticking time bomb.
NHTSA ODI #11726074
Mileage unknown · Mar 11, 2026
Engine
Vehicle is under Recall 24V-608 for a fire risk. The vehicle has suffered the exact failure described (Overheating, Limp Mode, and Smoke/Thermal Event). Dealership (BMW of Pleasant Grove Utah) is refusing to replace the failed water pump, offering only a 'protective shield' which does not fix the current failure. This is a failu…
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Vehicle is under Recall 24V-608 for a fire risk. The vehicle has suffered the exact failure described (Overheating, Limp Mode, and Smoke/Thermal Event). Dealership (BMW of Pleasant Grove Utah) is refusing to replace the failed water pump, offering only a 'protective shield' which does not fix the current failure. This is a failure to provide a free and effective remedy for a known safety defect. A code was discovered when the senior advisor at this location ran the scanner, and displayed a "coolant pump switch-off due to locking" which the senior advisor tried to deflect as a physical object blocking the pump or some other mysterious issue. The issue was confirmed at a reputable maintenance shop earlier in the day before towing to BMW dealership. The senior advisor at BMW of Pleasant Grove is attempting to put me back in the road in a high safety risk vehicle.
NHTSA ODI #11723477
Mileage unknown · Nov 24, 2025
Engine
Thermostat was a recall back then, brought it to the dealer they fixed it and now it has come back, i brought it to a mechanic to fix it, and it came back again one more time. thermostat is staying stuck open. safety recall with emissions
NHTSA ODI #11701327
Mileage unknown · Nov 12, 2025
Electrical SystemEngine
I went to Lakeland bmw, for my recall, they only put a shield up for the recall instead of changing out my water pump which was draining my battery. Now they are trying to charge me for a whole water pump installation even after I informed them that it was supposed to be changed out when I came in for a the recall due too it cau…
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I went to Lakeland bmw, for my recall, they only put a shield up for the recall instead of changing out my water pump which was draining my battery. Now they are trying to charge me for a whole water pump installation even after I informed them that it was supposed to be changed out when I came in for a the recall due too it causing a battery drain.
NHTSA ODI #11698897
Mileage unknown · Feb 16, 2025
Electrical SystemEngine
The engine coolant pump is affected in my vehicle. There is a current recall issued on my vehicle with no available remedy. The recall was issued back in August, which means it has been 6 months. This is my form of transportation to work and also to school. I have contacted my local dealership and they are not sure when they wil…
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The engine coolant pump is affected in my vehicle. There is a current recall issued on my vehicle with no available remedy. The recall was issued back in August, which means it has been 6 months. This is my form of transportation to work and also to school. I have contacted my local dealership and they are not sure when they will get the part in. They want me to pay $195 per hour for a diagnostic first to see if they can expedite the part needed. With this being said they will not offer me a loaner vehicle and says I am responsible for my own form a transportation. I was driving my vehicle on February 11th around 5:45PM when my vehicle suddenly stopped in the middle of a roundabout. I yielded oncoming traffic, thankfully I was able to shift over into the grass in time before anyone else entered the roundabout. My check engine light came on and it started to overheat, which I have never had that issue since the recall was issued. It started smoking from under my hood so I let it cool before I attempted to drive it again to return home. The following day I was able to start my vehicle up and I took it to Take 5 to get an oil change and a coolant flush thinking that may be the issue. The mechanic advised me since the coolant they use is standard coolant and I need premium he would not perform it. He ran my codes and the issue that popped up was the current recall on my vehicle. This is the first time I have experienced any issues since the recall has been issued. I am now left with a vehicle that is not able to be driven.
NHTSA ODI #11642969
Mileage unknown · Feb 3, 2025
Engine
The engine coolant pump is leaking and causing my car to smoke it’s been happening right before the recall was posted. I’m concerned my car will catch on fire and there is no remedy for the fix yet. And it’s almost a whole year later.
NHTSA ODI #11640434
Mileage unknown · Jan 14, 2025
Electrical SystemEngineFuel/propulsion System
ENGINE COOLANT PUMP: The electrical connector of the engine coolant pump could become damaged. Small drops of liquid from the positive crankcase ventilation (PCV) system could drip down onto the electrical connector of the pump. Safety Risk Over time, this could lead to a short circuit and, in rare cases, a thermal event or a f…
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ENGINE COOLANT PUMP: The electrical connector of the engine coolant pump could become damaged. Small drops of liquid from the positive crankcase ventilation (PCV) system could drip down onto the electrical connector of the pump. Safety Risk Over time, this could lead to a short circuit and, in rare cases, a thermal event or a fire. We took it to a car shop and they charged us over $800 fixing something else that was not the issue. We haven’t been able to drive this car for months and it has caused tremendous inconveniences.
NHTSA ODI #11635825
Mileage unknown · Dec 17, 2024
Engine
What Happened: The issue involves a recall on the engine coolant system of my BMW. The car is currently unsafe to drive, and BMW has not provided a timetable for fixing the problem or offering a solution. The last time I drove the car, I experienced a dangerous malfunction. While driving slowly to the end of my street, I pressed…
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What Happened: The issue involves a recall on the engine coolant system of my BMW. The car is currently unsafe to drive, and BMW has not provided a timetable for fixing the problem or offering a solution. The last time I drove the car, I experienced a dangerous malfunction. While driving slowly to the end of my street, I pressed the gas pedal, but the engine did not respond at all. The car essentially lost power, leaving me in the middle of the street. I was able to roll the car in front of a neighbor’s house, turn it off, and restart it. After restarting, I managed to drive it back up the street to my house. I have not driven the car since, as I do not want to put myself or others in danger. Safety Risk: The engine failure occurred while I was driving, which could have put me at risk of being struck by other vehicles. A sudden loss of engine power while driving, especially at higher speeds or in traffic, could cause a serious accident. Inspection/Confirmation: The recall has been acknowledged by BMW, but there is no timetable for when parts will be available to resolve the issue. I have contacted the corporate office and the local dealership. The dealer refuses to provide a rental car, leaving me without a viable transportation option. Warning Symptoms: No warning lamps, messages, or other symptoms appeared before the failure occurred.
NHTSA ODI #11631215
Official recalls
8Dec 17, 2025
BMW of North America, LLC (BMW) is recalling certain 2014 4 Series Coupe (428i, 428i xDrive, 435i, 435i xDrive), 3 Series Sedan (320i, 320i xDrive, 328i, 328i xDrive, 335i, 335i xDrive), and 2014-2015 2 Series Coupe (228i, 228i xDrive, M235i, M235i xDrive) vehicles. The head air bag inflator may fail at the weld joint, which can cause gas to leak from the inflator or result in an inflator rupture.
Consequence & remedy
Consequence: An inflator that ruptures may cause sharp metal fragments to enter or exit the vehicle, increasing the risk of injury. Additionally, an inflator that leaks gas may only partially inflate during a crash, increasing the risk of injury.
Remedy: Dealers will replace the head air bags, free of charge. Owner notification letters were mailed February 12, 2026. Owners may contact BMW customer service at 1-800-525-7417.
Aug 13, 2024
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
Consequence & remedy
Consequence: An electrical short increases the risk of a fire.
Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.
Additional source detail variants (2)
Electrical System:wiring:connectors/plugs/receptacles
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
Consequence: An electrical short increases the risk of a fire.
Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.
Engine And Engine Cooling:cooling System:pump
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
Consequence: An electrical short increases the risk of a fire.
Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.
Jul 11, 2024
BMW of North America, LLC (BMW) is recalling certain 2015 6 Series Gran Coupe, 2014 5 Series Gran Turismo, 2014 5 Series Sedan, 2015 6 Series Convertible, 2015 6 Series Coupe, 2014 X5, 2013-2014 X3, 2014-2015 3 Series Sedan, 2014 4 Series Coupe, 2014 4 Series Convertible, 2014 3 Series Gran Turismo, and 2015 4 Series Gran Coupe vehicles. Please see the recall report for the complete list of models. The driver's air bag inflator may explode during deployment, due to a manufacturing defect.
Consequence & remedy
Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, increasing the risk of injury or death.
Remedy: The driver's front air bag will be replaced, free of charge. Owner notification letters were mailed September 6, 2024. Owners may contact BMW customer service at 1-800-525-7417.
Apr 24, 2024
BMW of North America, LLC (BMW) is recalling certain 2014-2015 2 Series Coupe (228i, 228i xDrive, M235i), 3 Series Sedan (320i, 320i xDrive, 328i, 328i xDrive, 335i, 335i xDrive, M3, 328d, 328d xDrive), 4 Series Coupe (428i, 428i xDrive, 435i, 435i xDrive, M4), and 2015 4 Series Gran Coupe (428i, 428i xDrive, 435i, 435i xDrive) vehicles. The head air bag inflator may fail at the weld joint, which can cause gas to leak from the inflator or result in an inflator rupture.
Consequence & remedy
Consequence: An inflator that ruptures may cause sharp metal fragments to enter or exit the vehicle, increasing the risk of injury. Additionally, an inflator that leaks gas may only partially inflate during a crash, increasing the risk of injury.
Remedy: Dealers will replace the head air bags, free of charge. Owner notification letters were mailed November 4, 2024. Owners may contact BMW customer service at 1-800-525-7417.
Aug 17, 2015
BMW North America, LLC (BMW) is recalling certain model year 2012-2015 320i, 320xi, 328i, 328xi, 335i, 335xi, and ActiveHybrid3 vehicles manufactured October 20, 2011, to June 22, 2015, 2014-2015 328xi Sports Wagon vehicles manufactured March 21, 2013, to March 17, 2015, 2014-2015 328d, 328xd vehicles manufactured June 28, 2013, to April 21, 2015, and 2014-2015 328xd Sports Wagon vehicles manufactured July 5, 2013, to April 21, 2015. The affected vehicles may have been programmed with new software that inadvertently makes the front side marker lights inoperative in conjunction with the parking lights or the headlights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: If the side marker lights do not illuminate, the vehicle may be less visible at night, increasing the risk of a crash.
Remedy: BMW will notify owners, and dealers will upload revised software to correct the issue, free of charge. The recall began on October 7, 2015. Owners may contact BMW customer service at 1-800-525-7417 or by email at CustomerRelations@bmwusa.com.
Mar 31, 2015
BMW of North America LLC (BMW) is recalling certain model year 2014 228i Coupe, M235i Coupe, 320i, 320xi, 328i, 328xi, 335i, 335xi, ActiveHybrid 3, 328xi Sports Wagon, 428i Coupe, 428xi Coupe, 435i Coupe, 435xi Coupe, 428i Convertible, 428xi Convertible, 435i Convertible, 328xi Gran Turismo, 335xi Gran Turismo, and 2015 428i Gran Coupe, 428xi Gran Coupe, and 435i Gran Coupe vehicles. Improper nickel plating of components within the fuel pump may result in the fuel pump failing.
Consequence & remedy
Consequence: If the fuel pump fails, the vehicle may stall without warning, increasing the risk of a crash.
Remedy: BMW will notify owners, and dealers will replace the fuel pump, free of charge. Owners were mailed interim notices on May 28, 2015. The recall began on July 6, 2015. Owners may contact BMW customer service at 1-800-525-7417.
Oct 7, 2014
BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.
Consequence & remedy
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.
Additional source detail variants (2)
Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings
BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.
Service Brakes, Hydraulic:power Assist:vacuum
BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.
Sep 26, 2013
BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.
Consequence & remedy
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
Additional source detail variants (2)
Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings
BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
Service Brakes, Hydraulic:power Assist:vacuum
BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.
Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.
Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
PE13030 · Loss Of Power Assist Braking
Opened Sep 6, 2013 · Closed Oct 25, 2013
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist:vacuum
In a letter dated September 26, 2013, BMW Group submitted a safety recall notice to NHTSA identifying a defect condition in the vacuum pump oil supply that may result in loss of power assist braking in 76,191 model year (MY) 2012 through 2014 BMW 3-Series, 5-Series, X1 SAV, X3 SAV, and Z4 vehicles equipped with 4-cylinder engines (NHTSA Recall 13V-454).According to BMW, movement of the seal disk within the camshaft may result in blocking of the oil supply to the vacuum pump, resulting in improper pump operation and loss of power assist braking.On July 11, 2013, BMW initiated a change to the camshaft geometry that prevented the seal disk from blocking the oil port.BMW has not received any braking complaints related to loss of power assist after the design change was implemented in production.The owners of all affected vehicles will be contacted by mail and asked to take their vehicle to a BMW dealer who will install a locking ring into the camshaft to keep the seal disk in its proper location.BMW expects to begin dealer and owner notification in November 2013 and complete dealer and owner notification in December when the remedy is expected to be available.Based on the actions taken by BMW, this investigation is closed.
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